Zakuro Member

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Zakuro Member (Somekawa and Yoshikawa, 1983) Miyachi et al., 2001

Invalid synonym: Zakuro Alternation Member

Type locality: Zakuro, Seika city, Soraku county, Kyoto prefecture
Coherent formation
Pliocene - Pleistocene
Contemporaneous heterotopic facies: Uji Member

Sedimentary facies: Fluvial, Lacustrine
Sedimentary facies: Flood plain
Lithofacies: Interbedded sands and mud
Lithofacies (Minor): Gravel
Sedimentary structures: Parallel stratification, Graded bedding, Reversed graded bedding, Ripple cross-stratification, Trough cross-stratification, Planar cross-stratification
Paleocurrent: from North to East, from South to East

Thickness: ca. 30 - 60 m
Upper limit: Bottom of the gravel bed around Ss-Pnk
Upper limit: Transitional (Seika Formation)
Lower limit: Transitional (Mizutori Member)

Tanabe Formation (Nishinokyo, Nara pref.)
[ Upper ]
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Zakuro Member
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Mizutori Member
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[ Lower ]

Osaka Group (Yawata, Kyoto pref.)
[ Upper ]
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Shodai Formation
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Seika Formation
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Tanabe Formation
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Tomigaoka Formation
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[ Lower ]

Second Setouchi Supergroup (Osaka pref. - Hyogo pref.)
[ Upper ]
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Osaka Group
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[ Lower ]

[ Upper ]
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Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
~~~~~~~~~~~~~~
[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Higashihataguchi - Zakuro - Hosono - Yamada, Seika city, Soraku county, Kyoto pref.; Matsuiyama, Yawata city, Kyoto pref.; Tani - Kodo, Kyotanabe city, Kyoto pref.; Sugiyamate, Hirakata city, Osaka pref.; Takayama, Ikoma city, Nara pref.; Lake Ayamaike, Nara city, Nara pref.;
Tephra: Susudani I, Susudani II, Ss-Pnk
Key bed (Marine clay): Ma 1

Miyachi et al. (2005) Geology of the Kyoto-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 90p. (in Japanese with English abstract 4p.)
Miyachi et al. (2001) Geology of the Osaka-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 130p. (in Japanese with English abstract 6p.)
Ozaki et al. (2000) Geology of the Nara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 162p. (in Japanese with English abstract 5p.)